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Choosing a Brushed or Brushless DC Motor - .PDF file.

When choosing a DC motor system for your specific application, several aspects have to be considered prior to deciding to choose a brushed or brushless DC motor, such as:

Required output speed/torque
Available power supply
Service life
External conditions
Temperature
Humidity
Dimensional capacity

Once these factors have been considered, the answer will be clear as to whether a brushed DC motor is suitable, or a brushless DC motor. The internal construction differs between the two and each comes with its own advantages and disadvantages.

Brushed motors from Maxon come with two options, one with Graphite Brushes and one with Precious Metal Brushes. The brushes make up the commutation system, as they make contact with the commutator bars when the rotor rotates, allowing the motor to achieve continuous motion and maintain the required torque.

maxon motor is the world’s leading supplier of high-precision drive systems.

maxon has earned a reputation for constant innovation and unflinching reliability – seeing the company’s products used by the world’s top engineers in fields as demanding as space exploration, formula 1 racing and sub-sea applications.

The maxon product range is developed on a modular basis, giving literally hundreds of thousands of perfectly compatible motor, gear and controller combinations to suit a huge array of applications. With full customisation possible for almost every product, maxon’s experienced sales engineers are on-hand to assist design engineers select precisely the right solution for their needs.

DC motors with ironless winding and flat motors (up to 500W output power, mechanical and electronic commutation).
Planetary, spur and special gears.
Sensors (encoders, DC tachos, resolvers).
Servo amplifiers, position controllers.
High-tech CIM and MIM components.
Customer specific drive solutions.

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